Brand New Set of 20Kg Adjustable Dumbbells These dumbbells are the latest generation of adjustable dumbbells featuring a very easy to use twist lock selection mechanism. The major innovation with this model is the fact that the dumbbells only grow in length as you select more weight - as opposed to other makes where they use a standard length bar which means that it can be awkward to use at lower weights due having an unbalanced feel. Irish and Uk delivery included in prize.